The CME Project offers an innovative high school mathematics curriculum, wrapped around a familiar course sequence of Algebra 1, Geometry, Algebra 2, and Pre-calculus. The CME Project meets the dual goals of mathematical rigor and accessibility for all students. It achieves these goals through: Innovative, research-based instruction; Problem-based, student-centered curriculum; Engaging lessons that focus on developing students' Habits of Mind; Accessible approach to capture and engage students of all ability levels. Supported during its development by the National Science Foundation, one link is to the publisher's website and another is to the project development site.